File:Gneiss (Archean; Windy Lake Northwest roadcut, Sudbury Impact Structure, Ontario, Canada) 2 (32792412547).jpg
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| Description |
Gneiss in the Precambrian of Ontario, Canada. Gneiss is a high-grade, foliated metamorphic rock. It forms principally by metamorphism of schist, granite, or granite-like rocks. The foliation in gneiss is obvious and consists of alternating bands of light and dark minerals. The Precambrian-aged gneiss in this Ontario outcrop is associated with rocks of the Cartier Granite (Neoarchean) and the Sudbury Breccia (Paleoproterozoic) Geologic unit: probably the Levack Gneiss Complex, Neoarchean, ~2.64 to 2.70 Ga Locality: Windy Lake Northwest outcrop - roadcut on the western side of Route 144, northwest of the “town” of Windy Lake, Sudbury Impact Structure, Ontario, southeastern Canada (46° 39’ 46.91" North latitude, 81° 31’ 21.22" West longitude) |
| Date | |
| Source | Gneiss (Archean; Windy Lake Northwest roadcut, Sudbury Impact Structure, Ontario, Canada) 2 |
| Author | James St. John |
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This file is licensed under the Creative Commons Attribution 2.0 Generic license.
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This image was originally posted to Flickr by James St. John at https://flickr.com/photos/47445767@N05/32792412547. It was reviewed on 2 December 2019 by FlickreviewR 2 and was confirmed to be licensed under the terms of the cc-by-2.0. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 06:22, 2 December 2019 | | 4,000 × 3,000 (7.54 MB) | Ser Amantio di Nicolao (talk | contribs) | Transferred from Flickr via #flickr2commons |
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